/*
 * Fundamental constants relating to ethernet.
 *
 * $FreeBSD: src/sys/net/ethernet.h,v 1.12.2.8 2002/12/01 14:03:09 sobomax Exp $
 * $DragonFly: src/sys/net/ethernet.h,v 1.19 2008/06/24 11:40:56 sephe Exp $
 *
 */

#ifndef __INET_ETHERNETHDR_H
#define __INET_ETHERNETHDR_H

namespace inet {

namespace serializer {

#ifdef _MSC_VER
#define __PACKED__
#else
#define __PACKED__  __attribute__((packed))
#endif


/*
 * The number of bytes in an ethernet (MAC) address.
 */
#define ETHER_ADDR_LEN    6

/*
 * The number of bytes in the type field.
 */
#define ETHER_TYPE_LEN    2

/*
 * The number of bytes in the trailing CRC field.
 */
#define ETHER_CRC_LEN     4

/*
 * Mbuf adjust factor to force 32-bit alignment of IP header.
 * Drivers should do m_adj(m, ETHER_ALIGN) when setting up a
 * receive so the upper layers get the IP header properly aligned
 * past the 14-byte Ethernet header.
 */
#define ETHER_ALIGN       2

/*
 * The length of the combined header.
 */
#define ETHER_HDR_LEN     (ETHER_ADDR_LEN * 2 + ETHER_TYPE_LEN)

/*
 * The minimum packet length.
 */
#define ETHER_MIN_LEN     64

/*
 * The maximum packet length.
 */
#define ETHER_MAX_LEN     1518

/*
 * A macro to validate a length with
 */
#define ETHER_IS_VALID_LEN(foo) \
    ((foo) >= ETHER_MIN_LEN && (foo) <= ETHER_MAX_LEN)

/*
 * Ethernet CRC32 polynomials (big- and little-endian verions).
 */
#define ETHER_CRC_POLY_LE    0xedb88320
#define ETHER_CRC_POLY_BE    0x04c11db6

/*
 * Structure of a 10Mb/s Ethernet header.
 */
struct  ether_header
{
    uint8_t ether_dhost[ETHER_ADDR_LEN];
    uint8_t ether_shost[ETHER_ADDR_LEN];
    uint16_t ether_type;
};

/*
 * Structure of a 48-bit Ethernet address.
 */
struct  ether_addr
{
    uint8_t octet[ETHER_ADDR_LEN];
};

/*
 * Structure of SNAP header
 */
struct snap_header
{
    uint8_t dsap;
    uint8_t ssap;
    uint8_t ctrl;
    uint8_t oui[3];    // organizational universal id
    uint16_t ethertype;    // packet type ID field
} __PACKED__;

extern const uint8_t etherbroadcastaddr[ETHER_ADDR_LEN];

#define ETHER_IS_MULTICAST(addr)    (*(addr) & 0x01) /* is address mcast/bcast? */

/*
 *  NOTE: 0x0000-0x05DC (0..1500) are generally IEEE 802.3 length fields.
 *  However, there are some conflicts.
 */

// disabled ETHERTYPE constants
#if 0
#define ETHERTYPE_8023              0x0004  /* IEEE 802.3 packet */
/* 0x0101 .. 0x1FF      Experimental */
#define ETHERTYPE_PUP               0x0200  /* Xerox PUP protocol - see 0A00 */
#define ETHERTYPE_PUPAT             0x0200  /* PUP Address Translation - see 0A01 */
#define ETHERTYPE_SPRITE            0x0500  /* ??? */
/* 0x0400     Nixdorf */
#define ETHERTYPE_NS                0x0600  /* XNS */
#define ETHERTYPE_NSAT              0x0601  /* XNS Address Translation (3Mb only) */
#define ETHERTYPE_DLOG1             0x0660  /* DLOG (?) */
#define ETHERTYPE_DLOG2             0x0661  /* DLOG (?) */
#define ETHERTYPE_IP                0x0800  /* IP protocol */
#define ETHERTYPE_X75               0x0801  /* X.75 Internet */
#define ETHERTYPE_NBS               0x0802  /* NBS Internet */
#define ETHERTYPE_ECMA              0x0803  /* ECMA Internet */
#define ETHERTYPE_CHAOS             0x0804  /* CHAOSnet */
#define ETHERTYPE_X25               0x0805  /* X.25 Level 3 */
#define ETHERTYPE_ARP               0x0806  /* Address resolution protocol */
#define ETHERTYPE_NSCOMPAT          0x0807  /* XNS Compatibility */
#define ETHERTYPE_FRARP             0x0808  /* Frame Relay ARP (RFC1701) */
/* 0x081C     Symbolics Private */
/* 0x0888 - 0x088A     Xyplex */
#define ETHERTYPE_UBDEBUG           0x0900  /* Ungermann-Bass network debugger */
#define ETHERTYPE_IEEEPUP           0x0A00  /* Xerox IEEE802.3 PUP */
#define ETHERTYPE_IEEEPUPAT         0x0A01  /* Xerox IEEE802.3 PUP Address Translation */
#define ETHERTYPE_VINES             0x0BAD  /* Banyan VINES */
#define ETHERTYPE_VINESLOOP         0x0BAE  /* Banyan VINES Loopback */
#define ETHERTYPE_VINESECHO         0x0BAF  /* Banyan VINES Echo */

/*                     0x1000 - 0x100F     Berkeley Trailer */
/*
 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
 * by an ETHER type (as given above) and then the (variable-length) header.
 */
#define ETHERTYPE_TRAIL             0x1000  /* Trailer packet */
#define ETHERTYPE_NTRAILER          16

#define ETHERTYPE_DCA               0x1234  /* DCA - Multicast */
#define ETHERTYPE_VALID             0x1600  /* VALID system protocol */
#define ETHERTYPE_DOGFIGHT          0x1989  /* Artificial Horizons ("Aviator" dogfight simulator [on Sun]) */
#define ETHERTYPE_RCL               0x1995  /* Datapoint Corporation (RCL lan protocol) */

/* The following 3C0x types
   are unregistered: */
#define ETHERTYPE_NBPVCD            0x3C00  /* 3Com NBP virtual circuit datagram (like XNS SPP) not registered */
#define ETHERTYPE_NBPSCD            0x3C01  /* 3Com NBP System control datagram not registered */
#define ETHERTYPE_NBPCREQ           0x3C02  /* 3Com NBP Connect request (virtual cct) not registered */
#define ETHERTYPE_NBPCRSP           0x3C03  /* 3Com NBP Connect repsonse not registered */
#define ETHERTYPE_NBPCC             0x3C04  /* 3Com NBP Connect complete not registered */
#define ETHERTYPE_NBPCLREQ          0x3C05  /* 3Com NBP Close request (virtual cct) not registered */
#define ETHERTYPE_NBPCLRSP          0x3C06  /* 3Com NBP Close response not registered */
#define ETHERTYPE_NBPDG             0x3C07  /* 3Com NBP Datagram (like XNS IDP) not registered */
#define ETHERTYPE_NBPDGB            0x3C08  /* 3Com NBP Datagram broadcast not registered */
#define ETHERTYPE_NBPCLAIM          0x3C09  /* 3Com NBP Claim NetBIOS name not registered */
#define ETHERTYPE_NBPDLTE           0x3C0A  /* 3Com NBP Delete Netbios name not registered */
#define ETHERTYPE_NBPRAS            0x3C0B  /* 3Com NBP Remote adaptor status request not registered */
#define ETHERTYPE_NBPRAR            0x3C0C  /* 3Com NBP Remote adaptor response not registered */
#define ETHERTYPE_NBPRST            0x3C0D  /* 3Com NBP Reset not registered */

#define ETHERTYPE_PCS               0x4242  /* PCS Basic Block Protocol */
#define ETHERTYPE_IMLBLDIAG         0x424C  /* Information Modes Little Big LAN diagnostic */
#define ETHERTYPE_DIDDLE            0x4321  /* THD - Diddle */
#define ETHERTYPE_IMLBL             0x4C42  /* Information Modes Little Big LAN */
#define ETHERTYPE_SIMNET            0x5208  /* BBN Simnet Private */
#define ETHERTYPE_DECEXPER          0x6000  /* DEC Unassigned, experimental */
#define ETHERTYPE_MOPDL             0x6001  /* DEC MOP dump/load */
#define ETHERTYPE_MOPRC             0x6002  /* DEC MOP remote console */
#define ETHERTYPE_DECnet            0x6003  /* DEC DECNET Phase IV route */
#define ETHERTYPE_DN                ETHERTYPE_DECnet        /* libpcap, tcpdump */
#define ETHERTYPE_LAT               0x6004  /* DEC LAT */
#define ETHERTYPE_DECDIAG           0x6005  /* DEC diagnostic protocol (at interface initialization?) */
#define ETHERTYPE_DECCUST           0x6006  /* DEC customer protocol */
#define ETHERTYPE_SCA               0x6007  /* DEC LAVC, SCA */
#define ETHERTYPE_AMBER             0x6008  /* DEC AMBER */
#define ETHERTYPE_DECMUMPS          0x6009  /* DEC MUMPS */
/* 0x6010 - 0x6014     3Com Corporation */
#define ETHERTYPE_TRANSETHER        0x6558  /* Trans Ether Bridging (RFC1701)*/
#define ETHERTYPE_RAWFR             0x6559  /* Raw Frame Relay (RFC1701) */
#define ETHERTYPE_UBDL              0x7000  /* Ungermann-Bass download */
#define ETHERTYPE_UBNIU             0x7001  /* Ungermann-Bass NIUs */
#define ETHERTYPE_UBDIAGLOOP        0x7002  /* Ungermann-Bass diagnostic/loopback */
#define ETHERTYPE_UBNMC             0x7003  /* Ungermann-Bass ??? (NMC to/from UB Bridge) */
#define ETHERTYPE_UBBST             0x7005  /* Ungermann-Bass Bridge Spanning Tree */
#define ETHERTYPE_OS9               0x7007  /* OS/9 Microware */
#define ETHERTYPE_OS9NET            0x7009  /* OS/9 Net? */
/* 0x7020 - 0x7029     LRT (England) (now Sintrom) */
#define ETHERTYPE_RACAL             0x7030  /* Racal-Interlan */
#define ETHERTYPE_PRIMENTS          0x7031  /* Prime NTS (Network Terminal Service) */
#define ETHERTYPE_CABLETRON         0x7034  /* Cabletron */
#define ETHERTYPE_CRONUSVLN         0x8003  /* Cronus VLN */
#define ETHERTYPE_CRONUS            0x8004  /* Cronus Direct */
#define ETHERTYPE_HP                0x8005  /* HP Probe */
#define ETHERTYPE_NESTAR            0x8006  /* Nestar */
#define ETHERTYPE_ATTSTANFORD       0x8008  /* AT&T/Stanford (local use) */
#define ETHERTYPE_EXCELAN           0x8010  /* Excelan */
#define ETHERTYPE_SG_DIAG           0x8013  /* SGI diagnostic type */
#define ETHERTYPE_SG_NETGAMES       0x8014  /* SGI network games */
#define ETHERTYPE_SG_RESV           0x8015  /* SGI reserved type */
#define ETHERTYPE_SG_BOUNCE         0x8016  /* SGI bounce server */
#define ETHERTYPE_APOLLODOMAIN      0x8019  /* Apollo DOMAIN */
#define ETHERTYPE_TYMSHARE          0x802E  /* Tymeshare */
#define ETHERTYPE_TIGAN             0x802F  /* Tigan, Inc. */
#define ETHERTYPE_REVARP            0x8035  /* Reverse addr resolution protocol */
#define ETHERTYPE_AEONIC            0x8036  /* Aeonic Systems */
#define ETHERTYPE_IPXNEW            0x8037  /* IPX (Novell Netware?) */
#define ETHERTYPE_LANBRIDGE         0x8038  /* DEC LANBridge */
#define ETHERTYPE_DSMD              0x8039  /* DEC DSM/DDP */
#define ETHERTYPE_ARGONAUT          0x803A  /* DEC Argonaut Console */
#define ETHERTYPE_VAXELN            0x803B  /* DEC VAXELN */
#define ETHERTYPE_DECDNS            0x803C  /* DEC DNS Naming Service */
#define ETHERTYPE_ENCRYPT           0x803D  /* DEC Ethernet Encryption */
#define ETHERTYPE_DECDTS            0x803E  /* DEC Distributed Time Service */
#define ETHERTYPE_DECLTM            0x803F  /* DEC LAN Traffic Monitor */
#define ETHERTYPE_DECNETBIOS        0x8040  /* DEC PATHWORKS DECnet NETBIOS Emulation */
#define ETHERTYPE_DECLAST           0x8041  /* DEC Local Area System Transport */
/* 0x8042     DEC Unassigned */
#define ETHERTYPE_PLANNING          0x8044  /* Planning Research Corp. */
/* 0x8046 - 0x8047     AT&T */
#define ETHERTYPE_DECAM             0x8048  /* DEC Availability Manager for Distributed Systems DECamds (but someone at DEC says not) */
#define ETHERTYPE_EXPERDATA         0x8049  /* ExperData */
#define ETHERTYPE_VEXP              0x805B  /* Stanford V Kernel exp. */
#define ETHERTYPE_VPROD             0x805C  /* Stanford V Kernel prod. */
#define ETHERTYPE_ES                0x805D  /* Evans & Sutherland */
#define ETHERTYPE_LITTLE            0x8060  /* Little Machines */
#define ETHERTYPE_COUNTERPOINT      0x8062  /* Counterpoint Computers */
/* 0x8065 - 0x8066     Univ. of Mass @ Amherst */
#define ETHERTYPE_VEECO             0x8067  /* Veeco Integrated Auto. */
#define ETHERTYPE_GENDYN            0x8068  /* General Dynamics */
#define ETHERTYPE_ATT               0x8069  /* AT&T */
#define ETHERTYPE_AUTOPHON          0x806A  /* Autophon */
#define ETHERTYPE_COMDESIGN         0x806C  /* ComDesign */
#define ETHERTYPE_COMPUGRAPHIC      0x806D  /* Compugraphic Corporation */
/* 0x806E - 0x8077     Landmark Graphics Corp. */
#define ETHERTYPE_MATRA             0x807A  /* Matra */
#define ETHERTYPE_DDE               0x807B  /* Dansk Data Elektronik */
#define ETHERTYPE_MERIT             0x807C  /* Merit Internodal (or Univ of Michigan?) */
/* 0x807D - 0x807F     Vitalink Communications */
#define ETHERTYPE_VLTLMAN           0x8080  /* Vitalink TransLAN III Management */
/* 0x8081 - 0x8083     Counterpoint Computers */
/* 0x8088 - 0x808A     Xyplex */
#define ETHERTYPE_ATALK             0x809B  /* AppleTalk */
#define ETHERTYPE_AT                ETHERTYPE_ATALK         /* old NetBSD */
#define ETHERTYPE_APPLETALK         ETHERTYPE_ATALK         /* HP-UX */
/* 0x809C - 0x809E     Datability */
#define ETHERTYPE_SPIDER            0x809F  /* Spider Systems Ltd. */
/* 0x80A3     Nixdorf */
/* 0x80A4 - 0x80B3     Siemens Gammasonics Inc. */
/* 0x80C0 - 0x80C3     DCA (Digital Comm. Assoc.) Data Exchange Cluster */
/* 0x80C4 - 0x80C5     Banyan Systems */
#define ETHERTYPE_PACER       0x80C6  /* Pacer Software */
#define ETHERTYPE_APPLITEK    0x80C7  /* Applitek Corporation */
/* 0x80C8 - 0x80CC     Intergraph Corporation */
/* 0x80CD - 0x80CE     Harris Corporation */
/* 0x80CF - 0x80D2     Taylor Instrument */
/* 0x80D3 - 0x80D4     Rosemount Corporation */
#define ETHERTYPE_SNA           0x80D5  /* IBM SNA Services over Ethernet */
#define ETHERTYPE_VARIAN        0x80DD  /* Varian Associates */
/* 0x80DE - 0x80DF     TRFS (Integrated Solutions Transparent Remote File System) */
/* 0x80E0 - 0x80E3     Allen-Bradley */
/* 0x80E4 - 0x80F0     Datability */
#define ETHERTYPE_RETIX         0x80F2  /* Retix */
#define ETHERTYPE_AARP          0x80F3  /* AppleTalk AARP */
/* 0x80F4 - 0x80F5     Kinetics */
#define ETHERTYPE_APOLLO        0x80F7  /* Apollo Computer */
#define ETHERTYPE_VLAN          0x8100  /* IEEE 802.1Q VLAN tagging (XXX conflicts) */
/* 0x80FF - 0x8101     Wellfleet Communications (XXX conflicts) */
#define ETHERTYPE_BOFL          0x8102  /* Wellfleet; BOFL (Breath OF Life) pkts [every 5-10 secs.] */
#define ETHERTYPE_WELLFLEET     0x8103  /* Wellfleet Communications */
/* 0x8107 - 0x8109     Symbolics Private */
#define ETHERTYPE_TALARIS       0x812B  /* Talaris */
#define ETHERTYPE_WATERLOO      0x8130  /* Waterloo Microsystems Inc. (XXX which?) */
#define ETHERTYPE_HAYES         0x8130  /* Hayes Microcomputers (XXX which?) */
#define ETHERTYPE_VGLAB         0x8131  /* VG Laboratory Systems */
/* 0x8132 - 0x8137     Bridge Communications */
#define ETHERTYPE_IPX           0x8137  /* Novell (old) NetWare IPX (ECONFIG E option) */
#define ETHERTYPE_NOVELL        0x8138  /* Novell, Inc. */
/* 0x8139 - 0x813D     KTI */
#define ETHERTYPE_MUMPS         0x813F  /* M/MUMPS data sharing */
#define ETHERTYPE_AMOEBA        0x8145  /* Vrije Universiteit (NL) Amoeba 4 RPC (obsolete) */
#define ETHERTYPE_FLIP          0x8146  /* Vrije Universiteit (NL) FLIP (Fast Local Internet Protocol) */
#define ETHERTYPE_VURESERVED    0x8147  /* Vrije Universiteit (NL) [reserved] */
#define ETHERTYPE_LOGICRAFT     0x8148  /* Logicraft */
#define ETHERTYPE_NCD           0x8149  /* Network Computing Devices */
#define ETHERTYPE_ALPHA         0x814A  /* Alpha Micro */
#define ETHERTYPE_SNMP          0x814C  /* SNMP over Ethernet (see RFC1089) */
/* 0x814D - 0x814E     BIIN */
#define ETHERTYPE_TEC           0x814F  /* Technically Elite Concepts */
#define ETHERTYPE_RATIONAL      0x8150  /* Rational Corp */
/* 0x8151 - 0x8153     Qualcomm */
/* 0x815C - 0x815E     Computer Protocol Pty Ltd */
/* 0x8164 - 0x8166     Charles River Data Systems */
#define ETHERTYPE_XTP           0x817D  /* Protocol Engines XTP */
#define ETHERTYPE_SGITW         0x817E  /* SGI/Time Warner prop. */
#define ETHERTYPE_HIPPI_FP      0x8180  /* HIPPI-FP encapsulation */
#define ETHERTYPE_STP           0x8181  /* Scheduled Transfer STP, HIPPI-ST */
/* 0x8182 - 0x8183     Reserved for HIPPI-6400 */
/* 0x8184 - 0x818C     SGI prop. */
#define ETHERTYPE_MOTOROLA      0x818D  /* Motorola */
#define ETHERTYPE_NETBEUI       0x8191  /* PowerLAN NetBIOS/NetBEUI (PC) */
/* 0x819A - 0x81A3     RAD Network Devices */
/* 0x81B7 - 0x81B9     Xyplex */
/* 0x81CC - 0x81D5     Apricot Computers */
/* 0x81D6 - 0x81DD     Artisoft Lantastic */
/* 0x81E6 - 0x81EF     Polygon */
/* 0x81F0 - 0x81F2     Comsat Labs */
/* 0x81F3 - 0x81F5     SAIC */
/* 0x81F6 - 0x81F8     VG Analytical */
/* 0x8203 - 0x8205     QNX Software Systems Ltd. */
/* 0x8221 - 0x8222     Ascom Banking Systems */
/* 0x823E - 0x8240     Advanced Encryption Systems */
/* 0x8263 - 0x826A     Charles River Data Systems */
/* 0x827F - 0x8282     Athena Programming */
/* 0x829A - 0x829B     Inst Ind Info Tech */
/* 0x829C - 0x82AB     Taurus Controls */
/* 0x82AC - 0x8693     Walker Richer & Quinn */
#define ETHERTYPE_ACCTON         0x8390  /* Accton Technologies (unregistered) */
#define ETHERTYPE_TALARISMC      0x852B  /* Talaris multicast */
#define ETHERTYPE_KALPANA        0x8582  /* Kalpana */
/* 0x8694 - 0x869D     Idea Courier */
/* 0x869E - 0x86A1     Computer Network Tech */
/* 0x86A3 - 0x86AC     Gateway Communications */
#define ETHERTYPE_SECTRA         0x86DB  /* SECTRA */
#define ETHERTYPE_IPV6           0x86DD  /* IP protocol version 6 */
#define ETHERTYPE_DELTACON       0x86DE  /* Delta Controls */
#define ETHERTYPE_ATOMIC         0x86DF  /* ATOMIC */
/* 0x86E0 - 0x86EF     Landis & Gyr Powers */
/* 0x8700 - 0x8710     Motorola */
#define ETHERTYPE_RDP            0x8739  /* Control Technology Inc. RDP Without IP */
#define ETHERTYPE_MICP           0x873A  /* Control Technology Inc. Mcast Industrial Ctrl Proto. */
/* 0x873B - 0x873C     Control Technology Inc. Proprietary */
#define ETHERTYPE_TCPCOMP        0x876B  /* TCP/IP Compression (RFC1701) */
#define ETHERTYPE_IPAS           0x876C  /* IP Autonomous Systems (RFC1701) */
#define ETHERTYPE_SECUREDATA     0x876D  /* Secure Data (RFC1701) */
#define ETHERTYPE_FLOWCONTROL    0x8808  /* 802.3x flow control packet */
#define ETHERTYPE_PPP            0x880B  /* PPP (obsolete by PPPOE) */
#define ETHERTYPE_HITACHI        0x8820  /* Hitachi Cable (Optoelectronic Systems Laboratory) */
#define ETHERTYPE_MPLS           0x8847  /* MPLS Unicast */
#define ETHERTYPE_MPLS_MCAST     0x8848  /* MPLS Multicast */
#define ETHERTYPE_AXIS           0x8856  /* Axis Communications AB proprietary bootstrap/config */
#define ETHERTYPE_PPPOEDISC      0x8863  /* PPP Over Ethernet Discovery Stage */
#define ETHERTYPE_PPPOE          0x8864  /* PPP Over Ethernet Session Stage */
#define ETHERTYPE_LANPROBE       0x8888  /* HP LanProbe test? */
#define ETHERTYPE_PAE            0x888e  /* EAPOL PAE/802.1x */
#define ETHERTYPE_LOOPBACK       0x9000  /* Loopback: used to test interfaces */
#define ETHERTYPE_LBACK          ETHERTYPE_LOOPBACK      /* DEC MOP loopback */
#define ETHERTYPE_XNSSM          0x9001  /* 3Com (Formerly Bridge Communications), XNS Systems Management */
#define ETHERTYPE_TCPSM          0x9002  /* 3Com (Formerly Bridge Communications), TCP/IP Systems Management */
#define ETHERTYPE_BCLOOP         0x9003  /* 3Com (Formerly Bridge Communications), loopback detection */
#define ETHERTYPE_DEBNI          0xAAAA  /* DECNET? Used by VAX 6220 DEBNI */
#define ETHERTYPE_SONIX          0xFAF5  /* Sonix Arpeggio */
#define ETHERTYPE_VITAL          0xFF00  /* BBN VITAL-LanBridge cache wakeups */
/* 0xFF00 - 0xFFOF     ISC Bunker Ramo */

#define ETHERTYPE_MAX            0xFFFF  /* Maximum valid ethernet type, reserved */

#endif

/*
 * The ETHERTYPE_NTRAILER packet types starting at ETHERTYPE_TRAIL have
 * (type-ETHERTYPE_TRAIL)*512 bytes of data followed
 * by an ETHER type (as given above) and then the (variable-length) header.
 */
#define ETHERTYPE_TRAIL          0x1000          /* Trailer packet */
#define ETHERTYPE_NTRAILER       16

#define ETHERMTU                 (ETHER_MAX_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
#define ETHERMIN                 (ETHER_MIN_LEN - ETHER_HDR_LEN - ETHER_CRC_LEN)

} // namespace serializer

} // namespace inet

#endif /* !_NET_ETHERNET_H_ */

